Postictal pulmonary edema requires pulmonary vascular pressure increases.

Abstract:

:The pathogenesis of neurogenic pulmonary edema has been debated for many years. Whether cardiogenic mechanisms and increased pulmonary vascular pressures are primary or even necessary for the production of pulmonary edema has been argued. We used postictal pulmonary edema to study this problem in a sheep model of neurogenic pulmonary edema with bicucullin-induced status epilepticus. Seizure-induced increases in pulmonary vascular pressures were averted with a reservoir system to maintain left atrial pressure (LAP) and pulmonary artery pressure (PAP) at preseizure levels. No increase in lung lymph flow occurred during seizures, in contrast to the doubling of lung lymph flow that occurred during seizures when ictal pulmonary vascular hypertension was not blocked. These data support a primary role of pulmonary vascular pressure increases in the production of neurogenic pulmonary edema.

journal_name

Epilepsia

journal_title

Epilepsia

authors

Johnston SC,Darragh TM,Simon RP

doi

10.1111/j.1528-1157.1996.tb00587.x

subject

Has Abstract

pub_date

1996-05-01 00:00:00

pages

428-32

issue

5

eissn

0013-9580

issn

1528-1167

journal_volume

37

pub_type

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